PICKUP: Amplify your truck's performance at the friendliest price around! Banks Git-Kit produces rear-wheel gains up to +50 hp, +88 lb-ft torque and saves you an average of 8% in fuel when you're toting something heavy behind you. Maintains safe EGTs to preserve engine durability. Fitment Notes: Important - Some vehicle configurations require an extension kit for proper fit. 1999 Power Stroke variations: Ford trucks for model year 1999 fall into three categories: 1999; early 1999-1/2; late 1999-1/2. It is important to know the specific model. Check the build date on the tag inside the driver's door, then match: 1999 model year (built prior to 1/99 with catalytic converter), Early 1999-1/2 model year (built prior to 1/99, no catalytic converter, intake manifold has 2 inch-diameter inlets), Late 1999-1/2 model year (built on or after 1/99, no catalytic converter, intake manifold has 3 inch-diameter inlets). '99-03 F-350 cab-and-chassis (no bed) trucks: If fuel tank is behind rear axle of the vehicle, use systems for F-450/550 trucks. '99-03 pickups other than standard-cab long-bed or extended-cab short-bed require Exhaust Extension Kit. Git-Kit not available for 2001-03 (275 hp) pickups.